PERTURBATIVE RENORMALIZATION OF COMPOSITE-OPERATORS VIA FLOW EQUATIONS .2. SHORT DISTANCE EXPANSION

Authors
KELLER G KOPPER C
Citation
G. Keller et C. Kopper, PERTURBATIVE RENORMALIZATION OF COMPOSITE-OPERATORS VIA FLOW EQUATIONS .2. SHORT DISTANCE EXPANSION, Communications in Mathematical Physics, 153(2), 1993, pp. 245-276
Citations number
10
Categorie Soggetti
Mathematical Method, Physical Science","Physycs, Mathematical
Journal title
Communications in Mathematical Physics → ACNP
ISSN journal
00103616
Volume
153
Issue
2
Year of publication
1993
Pages
245 - 276
Database
ISI
SICI code
0010-3616(1993)153:2<245:PROCVF>2.0.ZU;2-X
Abstract
We give a rigorous and very detailed derivation of the short distance expansion for a product of two arbitrary composite operators in the fr amework of the perturbative Euclidean massive PHI4(4). The technically almost trivial proof rests on an extension of the differential flow e quation method to Green functions with bilocal insertions, for which w e also establish a set of generalized Zimmermann identities and Lowens tein rules.